////#include <iostream>
////using namespace std;
////namespace ONE {
////	int n = 3;
////}
////
////
////namespace TWO {
////	int n = 4;
////}
////
////int main() {
////	cout << ONE::n << endl;
////	cout << TWO::n << endl;
////	return 0;
////}
//#include <iostream>
//using namespace std;
//
//	int n = 3;
//
//int main() {
//	cout << n << endl;
//	return 0;
//}